To Next PageTo Next PageHow to troubleshoot linear expansion valve on Mitsubishi Electric PKFY-P20VAM?
To troubleshoot the linear expansion valve of your Mitsubishi Electric Air Conditioner, disconnect the connector and measure the resistance between the terminals using a tester. The surrounding temperature should be around 20°C.
How to troubleshoot vane motor on Mitsubishi Electric PKFY-P20VAM Air Conditioner?
To troubleshoot the vane motor of your Mitsubishi Electric Air Conditioner, measure the resistance between the terminals using a tester. The surrounding temperature should be between 20°C and 30°C.
How to troubleshoot thermistors on Mitsubishi Electric PKFY-P20VAM Air Conditioner?
To troubleshoot the room temperature thermistor (TH21), liquid pipe temperature thermistor (TH22), or gas pipe temperature thermistor (TH23) of your Mitsubishi Electric Air Conditioner, disconnect the connector and measure the resistance with a tester. The surrounding temperature should be between 10°C and 30°C.
What to do if valve does not close completely in Mitsubishi Electric Air Conditioner?
If the valve does not close completely, and a large amount of refrigerant is leaked, exchange the linear expansion valve. However, if the leakage is small and not affecting normal operation, it is not necessary to exchange the linear expansion valve.
What to do in case of short or breakage of the motor coil of the linear expansion valve in Mitsubishi Electric Air Conditioner?
If there is a short or breakage of the motor coil of the linear expansion valve, exchange the linear expansion valve.
What to do if linear expansion valve mechanism is locked in Mitsubishi Electric Air Conditioner?
If the linear expansion valve mechanism is locked, exchange the linear expansion valve.
What to do if Mitsubishi Electric PKFY-P20VAM valve doesn't close completely?
To check the linear expansion valve for leaks, operate the indoor unit in fan mode while operating other indoor units in cooling mode. Then, check the liquid pipe temperature of the indoor unit using the outdoor multi controller board operation monitor. During fan operation, the linear expansion valve should be completely closed. If there's a leak, the thermistor's detected temperature will be lower. If the detected temperature is much lower than the temperature indicated on the remote controller, it indicates the valve isn't fully closed. If the leakage is small and not causing issues, replacing the linear expansion valve isn't necessary. However, if there is a large amount of thermistor leakage, replace the linear expansion valve.
How to troubleshoot wrong connector connection in Mitsubishi Electric Air Conditioner?
First, check the color of the lead wire and for any missing terminals on the connector. Then, disconnect the connector at the controller board and check for continuity.
How to check motor coil of linear expansion valve in Mitsubishi Electric Air Conditioner?
Measure the resistance between each coil (red-white, red-orange, brown-yellow, brown-blue) using a tester. The resistance should be approximately 150'+10%. If it's not within this range, replace the linear expansion valve.
How to troubleshoot fan motor on Mitsubishi Electric PKFY-P20VAM Air Conditioner?
To troubleshoot the fan motor of your Mitsubishi Electric Air Conditioner, measure the resistance between the terminals using a tester. Ensure the surrounding temperature is around 20°C.
General| Series | PKFY |
|---|---|
| Cooling Capacity (kW) | 2.2 |
| Heating Capacity (kW) | 2.5 |
| Power Supply | 220-240 V, 50 Hz |
| Refrigerant | R410A |
| Outdoor Unit Dimensions (HxWxD) | 550 x 800 x 285 mm |
